Nov 05, 2026 • Leetcode
Cells with Odd Values in a Matrix
There is an m x n matrix that is initialized to all 0's. There is also a 2D array indices where each indices[i] = [ri, ci] represents a 0-indexed location to pe
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Nov 04, 2026 • Leetcode
Validate IP Address
Given a string queryIP, return "IPv4" if IP is a valid IPv4 address, "IPv6" if IP is a valid IPv6 address or "Neither" if IP is not a correct IP of any type.
Read more →Nov 03, 2026 • Leetcode
Goat Latin
You are given a string sentence that consist of words separated by spaces. Each word consists of lowercase and uppercase letters only.
Read more →Nov 02, 2026 • Leetcode
To Lower Case
Given a string s, return the string after replacing every uppercase letter with the same lowercase letter.
Read more →Nov 01, 2026 • Leetcode
Reverse String
Write a function that reverses a string. The input string is given as an array of characters s.
Read more →Oct 31, 2026 • Leetcode
Number of Good Ways to Split a String
You are given a string s.
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